package DesignPatern.A17_门面模式.A01_基本模式;

/**
 * @Author: Du
 * @Date: 2021/8/3 11:40
 */
public interface ILetterProcess
{
    public void writeContext(String context);
    
    public void fillEnvelope(String address);
    
    public void letterIntoEnvelope();
    
    public void sendLetter();
}
